Isoflurane as a solvent for electrochemistry. Electrooxidation study of icosahedral carborane anions in four different solvents

0386134 - ÚFCH JH 2014 RIV CH eng J - Článek v odborném periodiku
Wahab, Abdul - Kvapilová, Hana - Klíma, Jiří - Michl, Josef - Ludvík, Jiří
Isoflurane as a solvent for electrochemistry. Electrooxidation study of icosahedral carborane anions in four different solvents.
Journal of Electroanalytical Chemistry. Roč. 689, JAN 2013 (2013), s. 257-261. ISSN 1572-6657. E-ISSN 1873-2569
Grant CEP: GA MŠMT ME09002; GA ČR GC203/09/J058
Institucionální podpora: RVO:61388955 ; RVO:61388963
Klíčová slova: isoflurane * relative permitivity * icosahedral carborane anions
Kód oboru RIV: CG - Elektrochemie
Impakt faktor: 2.871, rok: 2013

Voltammetric studies of icosahedral carborane anions View the MathML source (1), View the MathML source (2), View the MathML source (3), and View the MathML source (4) are reported in isoflurane (1-chloro-2,2,2-trifluoroethyl difluoromethyl ether) and in three other solvents with different polarity (liquid SO2, acetonitrile, dichloromethane). They demonstrate the first use of isoflurane as a non-polar electrochemical solvent. The anions 1, 2 and 3 show reversible one-electron oxidations in all four solvents, whereas the oxidation of 4 is irreversible even at high scan rates. The measured half-wave potentials (E1/2) show a remarkable variation in the four different solvents. The E1/2 values are discussed in terms of specific solvation of the anions. The experimental results correlate fairly well with density functional theory (DFT) calculations.
Trvalý link: http://hdl.handle.net/11104/0221275